Cisco Cisco Web Security Appliance S690 Guida Utente

Configure the update and upgrade settings. You can configure settings that affect how the Web 
Security appliance downloads the upgrade information. For example, you can choose from where to 
download the upgrade images and more. For more information, see 

Upgrade the system software. After you configure the update and upgrade settings, upgrade the 
software on the appliance. If you have Upgrade Notifications turned on the appliance, administrators will 
see a message at the top of the Web Interface notifying them of an available upgrade. For more 
information, see 

 and 

.

Consider the following guidelines when you upgrade AsyncOS for Web:

Before you start the upgrade, save the XML configuration file off the Web Security appliance from 
the System Administration > Configuration File page or by using the 

saveconfig

 command. For 

more information, see 

When upgrading, do not pause for long amounts of time at the various prompts. If the TCP session 
times out during the download, the upgrade may fail.

Consider saving other files stored on the appliance, such as PAC files or customized end-user 
notification pages.

Consider saving the configuration information to an XML file after the upgrade completes, too. 

You can configure the Web Security appliance to display a message at the top of the web interface notify 
you that an upgrade to AsyncOS is available for the appliance. AsyncOS displays this notification for 
any administrator logged into the appliance.

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